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Geometrical constraints upon the unipolar model of V407 Vul and RX J0806.3+1527

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Barros, S. C. C., Marsh, T. R., Groot, P. J., Nelemans, G., Ramsay, G., Roelofs, Gijs H. A., Steeghs, D. and Wilms, J. (2005) Geometrical constraints upon the unipolar model of V407 Vul and RX J0806.3+1527. In: Conference on Astrophysics of Cataclysmic Variables and Related Objects, Strasbourg, France, JUL 11-16, 2004. Published in: Astrophysics of Cataclysmic Variables and Related Objects, Vol.330 pp. 331-332. ISBN 1-58381-193-1. ISSN 9781583811931.

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Abstract

V407 Vul and RX J0806.3+1527 are X-ray emitting stars with Xray light curves 100% modulated on periods of 569 and 321 seconds respectively. These are the only periods seen, and are thought to be the orbital periods of ultra-compact pairs of white dwarfs. There are two main double white dwarf models: the unipolar inductor model analogous to the Jupiter-Io system and the direct impact model analogous to Algol. We consider geometrical constraints on the unipolar inductor model, in particular what parameter values (component masses, orbital inclination i and magnetic co-latitude beta) can fit the X-ray and optical light curves.

Item Type: Conference Item (Paper)
Subjects: Q Science > QB Astronomy
Divisions: Faculty of Science > Physics
Series Name: ASTRONOMICAL SOCIETY OF THE PACIFIC CONFERENCE SERIES
Journal or Publication Title: Astrophysics of Cataclysmic Variables and Related Objects
Publisher: Astronomical Society of the Pacific
ISBN: 1-58381-193-1
ISSN: 9781583811931
Editor: Hameury, JM and Lasota, JP
Official Date: 2005
Dates:
DateEvent
2005Published
Volume: Vol.330
Number of Pages: 2
Page Range: pp. 331-332
Status: Peer Reviewed
Publication Status: Published
Access rights to Published version: Restricted or Subscription Access
Conference Paper Type: Paper
Title of Event: Conference on Astrophysics of Cataclysmic Variables and Related Objects
Type of Event: Conference
Location of Event: Strasbourg, France
Date(s) of Event: JUL 11-16, 2004

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